Imaginary Picture of HAT-P-65 b
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Exoplanet Name : HAT-P-65 b
Alternate Name :
Radius (Rjup / Re): 1.8900 (Rjup) 21.1850 (Rearth)
Mass (Mjup / Me): 0.5270 (Mjup) 167.5533 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0395 (AU) 0.0395 (AU Est.)
Eccentricity : 0.3000
Orbital Period(Yrs) 0.0071
Orbital Period(Observed/Estimated) 2.61 (Days Obs.) 2.61 (Days Est.)
Star Radiation at Atmospheric Boundary: 3150504.3 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1880.3 (K)
Blackbody T 0.3(K) 1765.8 (K)
Blackbody T 0.7(K) 1428.8 (K)
Tidally Locked Blackbody T 0.1(K) 2236.1 (K)
Tidally Locked Blackbody T 0.3(K) 2100.0 (K)
Size Class: Super-Jupiter-size
Mass Class:
Detection Type : Primary Transit
Mass Detection : Radial Velocity
Radius Detection : Primary Transit
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : HAT-P-65
Alternate Name :
Star Distance(LY) : 2743.0
Stellar Radius(Rsun) : 1.9 (Rsun Measured)
Stellar Mass(Msun) : 1.2 (Msun Measured) 1.2 (Msun Estimated)
Star Age : 5.5 (GY)
Temperature : 5835 (K)
Spectral type : G2
Metalicity : 0.1
Absolute Magnitude: 3.5
Apparent Magnitude: 13.2
Right Ascension(RA) 315.9055
Declination (DEC) 11.9894
Hubble Space Telescope Guide Star Catalog (GSC) ID 01111-00383
Discovered by
Discovery Paper - Authors
Discovery Paper - Title
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HAT-P-65+&submit=SIMBAD+search
Open Exoplanet Database Link
HAT-P-65 b
HAT-P-65 b

  • HAT-P-65 b is an exoplanet orbiting the star HAT-P-65, located about 2743.0 light-years (841.0 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star HAT-P-65 has apparent magnitude of 13.2, with absolute magnitude of 3.5.
  • It is 1.2 times more massive and 1.9 times bigger compared with our Sun. The surface temperature is 5835 with its spectral types of G2
  • In this planetary system, the extrasolar planet HAT-P-65 b orbits around the star HAT-P-65 every 2.6 days with its orbital distance of 0.04 AU ( 5910611.9 km)
  • (Projected orbit of HAT-P-65 b around its host star HAT-P-65)


  • The Star HAT-P-65 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.372 AU ( 205235638.8 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.896 AU ( 283689287.3 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.890 AU ( 432279693.5 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 4.252 AU ( 636118506.0 km)
  • Radiation at Planetary Boundary of HAT-P-65 b : 3150504.33 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HAT-P-65)



  • Kopparapu Recent Venus for Star HAT-P-65 distance : 1.417 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HAT-P-65 distance : 1.794 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HAT-P-65 distance : 1.733 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HAT-P-65 distance : 1.900 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HAT-P-65 distance : 3.164 AU
  • Kopparapu Outer Boundary for Early Mars for Star HAT-P-65 distance : 3.337 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HAT-P-65)



  • Original Kopparapu Recent Venus for Star HAT-P-65 distance : 1.421 AU
  • Original Kopparapu Runaway Greenhouse for Star HAT-P-65 distance : 1.844 AU
  • Original Kopparapu Moist Greenhouse for Star HAT-P-65 distance : 1.880 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HAT-P-65 distance : 3.220 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HAT-P-65 distance : 3.349 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HAT-P-65)



    (Position in Stellar Map of star HAT-P-65 and its Exoplanet HAT-P-65 b)



    (Zoomed position in Stellar Map of star HAT-P-65 and its Exoplanet HAT-P-65 b (zoom level 3))